Home / 90,014.96-135,024.60-27,686

Finding the Fourth Proportional to 90,014.96, 135,024.60 and 27,686

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Solution

The fourth proportional to 90,014.96, 135,024.60 and 27,686 is: 41,529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,014.96 : 135,024.60 = 27,686 : x
  2. Step 2: Convert to fraction form
    90,014.96/135,024.60 = 27,686/x
  3. Step 3: Cross multiply
    90,014.96x = 135,024.60 × 27,686
  4. Step 4: Simplify right side
    90,014.96x = 3,738,291,075.60
  5. Step 5: Solve for x
    x = 3,738,291,075.60/90,014.96
  6. Step 6: Final answer
    x = 41,529.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.